CVE-2026-75930 roxnor CVE debrief

Who should care

Defenders responsible for WordPress sites using the FundEngine plugin should assess exposure and prioritize updating the plugin to prevent exploitation. This includes site administrators, security teams, and vulnerability management teams. They should review the plugin version and update to the latest version if necessary. Additionally, they should monitor for suspicious activity and restrict access to sensitive areas of the WordPress site.

Why it matters

The CVE-2026-75930 vulnerability in the FundEngine plugin for WordPress allows authenticated attackers to modify arbitrary posts and pages, potentially leading to content tampering and ownership issues. Defenders should prioritize verifying and updating the plugin to prevent exploitation.

• Authenticated attackers with subscriber-level access can modify arbitrary posts and pages
• Attackers can seize ownership of posts by supplying an attacker-controlled post_author integer
• The vulnerability allows for overwriting of title and content of posts and pages

Technical summary

The FundEngine plugin for WordPress is vulnerable to authorization bypass due to improper verification of user authorization. This allows authenticated attackers with subscriber-level access and above to modify arbitrary posts and pages, overwriting title and content, and seizing ownership by supplying an attacker-controlled post_author integer that bypasses wp_kses_post sanitization. The vulnerability has a CVSS score of 4.3 and is considered MEDIUM severity. The plugin is used by WordPress sites to manage donations and crowdfunding campaigns.

Defensive priority

Defenders should prioritize verifying and updating the FundEngine plugin to prevent exploitation.

Recommended defensive actions

• Verify and update the FundEngine plugin to the latest version
• Monitor for suspicious activity on WordPress sites using the FundEngine plugin
• Restrict access to sensitive areas of the WordPress site
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its description and CVSS score. The vulnerability allows authenticated attackers with subscriber-level access and above to modify arbitrary posts and pages. Defenders should verify the plugin version and update to the latest version if necessary. The CVE record was published on 2026-08-25T04:18:20.503Z and has not been modified since then. Evidence is limited to public sources and may not reflect the full scope of affected systems or potential impacts.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.